[INFO] fetching crate drophost 0.4.2...
[INFO] testing drophost-0.4.2 against 1.76.0 for beta-1.77-1
[INFO] extracting crate drophost 0.4.2 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate drophost 0.4.2 on toolchain 1.76.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate drophost 0.4.2
[INFO] finished tweaking crates.io crate drophost 0.4.2
[INFO] tweaked toml for crates.io crate drophost 0.4.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate drophost 0.4.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.76.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded kqueue-sys v1.0.3
[INFO] [stderr]   Downloaded compile_warning v0.1.0
[INFO] [stderr]   Downloaded network-interface v1.0.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.22
[INFO] [stderr]   Downloaded notify v5.1.0
[INFO] [stderr]   Downloaded clap v4.2.4
[INFO] [stderr]   Downloaded clap_builder v4.2.4
[INFO] [stderr]   Downloaded rustix v0.37.7
[INFO] [stderr]   Downloaded syn v2.0.13
[INFO] [stderr]   Downloaded iprange v0.6.7
[INFO] [stderr]   Downloaded kqueue v1.0.7
[INFO] [stderr]   Downloaded oping v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a425f0d0364224dfbb4764d86a706aae4e204a5062bdec18e700836acee5dd81
[INFO] running `Command { std: "docker" "start" "-a" "a425f0d0364224dfbb4764d86a706aae4e204a5062bdec18e700836acee5dd81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a425f0d0364224dfbb4764d86a706aae4e204a5062bdec18e700836acee5dd81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a425f0d0364224dfbb4764d86a706aae4e204a5062bdec18e700836acee5dd81", kill_on_drop: false }`
[INFO] [stdout] a425f0d0364224dfbb4764d86a706aae4e204a5062bdec18e700836acee5dd81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 84ae36447e622c6ed894c9aa427c877e7662d4d0d07d659866e1665ede2b8003
[INFO] running `Command { std: "docker" "start" "-a" "84ae36447e622c6ed894c9aa427c877e7662d4d0d07d659866e1665ede2b8003", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling io-lifetimes v1.0.9
[INFO] [stderr]    Compiling rustix v0.37.7
[INFO] [stderr]    Compiling linux-raw-sys v0.3.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling utf8parse v0.2.1
[INFO] [stderr]    Compiling anstyle v1.0.0
[INFO] [stderr]    Compiling anstyle-query v1.0.0
[INFO] [stderr]    Compiling colorchoice v1.0.0
[INFO] [stderr]    Compiling tokio v1.27.0
[INFO] [stderr]    Compiling clap_lex v0.4.1
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]    Compiling anstyle-parse v0.2.0
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.7
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling syn v2.0.13
[INFO] [stderr]    Compiling regex v1.7.3
[INFO] [stderr]    Compiling inotify-sys v0.1.5
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stderr]    Compiling mio v0.8.6
[INFO] [stderr]    Compiling filetime v0.2.20
[INFO] [stderr]    Compiling nix v0.26.2
[INFO] [stderr]    Compiling inotify v0.9.6
[INFO] [stderr]    Compiling notify v5.1.0
[INFO] [stderr]    Compiling is-terminal v0.4.6
[INFO] [stderr]    Compiling anstream v0.3.0
[INFO] [stderr]    Compiling env_logger v0.10.0
[INFO] [stderr]    Compiling clap_builder v4.2.4
[INFO] [stderr]    Compiling tokio-macros v2.0.0
[INFO] [stderr]    Compiling clap_derive v4.2.0
[INFO] [stderr]    Compiling clap v4.2.4
[INFO] [stderr]    Compiling drophost v0.4.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused implementer of `Future` that must be used
[INFO] [stdout]    --> src/main.rs:136:17
[INFO] [stdout]     |
[INFO] [stdout] 136 |                 watch();
[INFO] [stdout]     |                 ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.20s
[INFO] running `Command { std: "docker" "inspect" "84ae36447e622c6ed894c9aa427c877e7662d4d0d07d659866e1665ede2b8003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84ae36447e622c6ed894c9aa427c877e7662d4d0d07d659866e1665ede2b8003", kill_on_drop: false }`
[INFO] [stdout] 84ae36447e622c6ed894c9aa427c877e7662d4d0d07d659866e1665ede2b8003
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.76.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d10adfaedef96bfc4a8399e54678611fcd24ebb86f6491d9e7b443711e376148
[INFO] running `Command { std: "docker" "start" "-a" "d10adfaedef96bfc4a8399e54678611fcd24ebb86f6491d9e7b443711e376148", kill_on_drop: false }`
[INFO] [stderr]    Compiling compile_warning v0.1.0
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/compile_warning-0.1.0/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(proc_macro_diagnostic)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `compile_warning` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d10adfaedef96bfc4a8399e54678611fcd24ebb86f6491d9e7b443711e376148", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d10adfaedef96bfc4a8399e54678611fcd24ebb86f6491d9e7b443711e376148", kill_on_drop: false }`
[INFO] [stdout] d10adfaedef96bfc4a8399e54678611fcd24ebb86f6491d9e7b443711e376148
